<template>
	<view>
		<view class="goods-list">
			<view v-for="(goods, i) in goodsList" :key="i" @click="gotoDetail(goods)">
				<my-goods :goods='goods'></my-goods>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				queryObj: {
					query: '',
					cid: '',
					pagenum: 1,
					pagesize: 10
				},
				goodsList:[],
				total: 0,
				//定义节流阀
				isLoading: false
			};
		},
		onLoad(options) {
			this.queryObj.query = options.query || ''
			this.queryObj.cid = options.cid || ''
			this.getGoodsList()
		},
		methods: {
			async getGoodsList(cb) {
				//代开节流阀
				this.isLoading= true
				const {data:res}= await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
				//关闭节流阀
				this.isLoading= false
				
				// 只要数据请求完毕，就立即按需调用 cb 回调函数
				cb && cb()
				if(res.meta.status !==200) return uni.$showMsg()
				this.goodsList= [...this.goodsList, ...res.message.goods]
				this.total= res.message.total
			},
			gotoDetail(goods) {
				uni.navigateTo({
					url: '/subpkg/goods_detail/goods_detail?goods_id=' + goods.goods_id
				})
			}
		},
		onReachBottom() {
			 // 判断是否还有下一页数据
			if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')

			
			if(this.isLoading) return
			//让页码值自增加1
			this.queryObj.pagenum++
			this.getGoodsList()
		},
		onPullDownRefresh() {
			this.queryObj.pagenum= 1
			this.total= 0
			this.isLoading= false
			 this.goodsList = []
			this.getGoodsList(()=> uni.stopPullDownRefresh())
		}
	}
</script>

<style lang="scss">

</style>
